CVE-2025-14831
Gnutls: gnutls: denial of service via excessive resource consumption during certificate verification
5.3CVSSMEDIUM
Description
A flaw was found in GnuTLS. This vulnerability allows a denial of service (DoS) by excessive CPU (Central Processing Unit) and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names (SANs).
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:LAvailabilityLow
Weaknesses
Affected Products
and 22 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
1 technique Impact
References
https://access.redhat.com/errata/RHSA-2026:13812
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:16008
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:16009
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and 293 more references View all →
Timeline
Published
Feb 9, 2026
Last Updated
Jun 10, 2026
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